Chemistry · Biology

Pharmacology and Therapeutics

1,643 Questions

Engage with critical pharmacology and therapeutics questions covering drug classifications and therapeutic mechanisms. Topics include chemical absorption, medication formulations, and pharmacogenomics. This collection is useful for students preparing for medical entrance, nursing, and science competitive examinations.

Chemical absorption routesDrug formulation typesMedication mechanismsEnzyme inhibitorsPharmacogenomic tests

Pharmacology and Therapeutics Questions

Multiple choice

Although aspirin irritates the stomach, it can be avoided if the aspirin tablet is given a coating that will not dissolve until the tablet reaches the intestine.

  1. Although aspirin irritates the stomach, it

  2. The irritation of the stomach caused by aspirin

  3. The fact that aspirin causes irritation of the stomach

  4. Aspirin causes stomach irritation, although it

  5. Aspirin irritates the stomach, which
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Error of sentence formation. 'Irritating somebody/something' and 'causing irritation' are two different things.

Multiple choice

The drug used to treat the amoebic dysentery is:

  1. Ornidazole

  2. Midazole

  3. Ketanove

  4. Rantac

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ornidazole is an antibiotic and antiprotozoal medication commonly used to treat infections caused by anaerobic bacteria and protozoa, including amoebic dysentery.

Multiple choice

For which disease is Allopurinol a drug of choice?

  1. Gout

  2. Filaria

  3. Malaria

  4. Tuberculosis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Allopurinol is a xanthine oxidase inhibitor used to lower uric acid levels in the blood, making it the standard treatment for gout. It is not used for filaria, malaria, or tuberculosis.

Multiple choice

Directions: Choose the most appropriate answer from the options given below:

_____ drug has been in all over the world for the control of leprosy for more than 30 years.

  1. Dapsone

  2. Halogen

  3. Chloroquine

  4. Zind

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dapsone (diaminodiphenyl sulfone) has been the primary drug for leprosy treatment for over 50 years, not just 30 years. It was introduced in the 1940s as part of multi-drug therapy. The question's '30 years' appears dated or incorrect. Halogens are elements, Chloroquine treats malaria, and 'Zind' is not a recognized drug name.

Multiple choice

Which of the following statements is/are false? (P) Cimetidine and valium are used as tranquiliser. (Q) Ranitidine is used as antacid and as antihistamine agent. (R) Ethinyl Estradiol used as antiviral agent and Norgestimate is used as contraceptive drug.

  1. Only P

  2. Only Q

  3. Only P and Q

  4. Only Q and R

  5. Only P and R
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

It is the correct answer. Valium is used as tranquilizer. Cimetidine is used as antihistamine agent. Ethinyl Estradiol and Norgestimate both have contraceptive properties and thus are used as antifertility drugs. Hence, the statements P and R are false.

Multiple choice

Which of the following drugs is not a tranquiliser?

  1. Ativan

  2. Xanax

  3. Halcyon

  4. Prosom

  5. Ceftazidime
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Some examples of tranquilisers are included- Valium (diazepam), Librium/Novopoxide (chlordiazepoxide), Halcion (triazolam), ProSom (estazolam), Xanax, Ativan, etc. But ceftazidime is a 3rd generation cephalosporin antibiotic.

Multiple choice

Which of the following statements is false? P. Aspartame is less sweeter and more stable to heating than alitame. Q. Ormeloxifene is used as an antihistamine agent. R. Alka-Seltzer is used as antacid.

  1. Only P

  2. Only Q

  3. Only R

  4. Only P and Q

  5. Only P and R
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

P. Alitame (2000 times sweeter than sucrose) is high potency sweetener and it is more stable to heating than aspartame (100 times sweeter than sucrose). Q. Ormeloxifene is one of the selective estrogen receptor, used as a contraceptive agent and as a treatment for dysfunctional uterine bleeding. R. Alka-Seltzer is the mixture of sodium bicarbonate and potassium bicarbonate used as antacid. Hence, the statement Q is only false.

Multiple choice

Which of the following are used as antacids?

  1. Rolaid
  2. Chlordiazepoxide
  3. Novestrol
  4. SHC
  5. Omeparazole

  1. Only 1 and 2

  2. Only 1, 2 and 3

  3. Only 2, 3 and 4

  4. Only 1, 4 and 5

  5. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In the stomach, over production of acid causes irritation, constipation and pain. In severe cases, ulcers are developed in the stomach. Until 1970, only treatment for acidity was administration of antacids, such as sodium hydrogen carbonate (SHC) and a mixture of aluminium and magnesium hydroxide. Some common antacids are- sodium hydrogen carbonate (NaHCO3), ranitidine, omeparazole, rebprazole, rolaid (CaCO3 and Mg(OH)2), etc. Novestrol (ethylnylestradiol) is used as contraceptive drug. Chlordiazepoxide is used as tranquiliser. Hence, the antacids are  - 1, 4 and 5.